Efficient Synthesis of β-Alkynylcorroles
Manuela Stefanelli, Mario L. Naitana, Marco Chiarini, Sara Nardis, Antonella Ricci, Frank R. Fronczek, Claudio Lo Sterzo, Kevin M. Smith and Roberto Paolesse
Article first published online: 2 OCT 2015 | DOI: 10.1002/ejoc.201501138
Regioselective dibromination of corrole and subsequent Stille cross-coupling allow the successful preparation of triarylcorroles functionalized at the β positions with alkynyl substituents. These derivatives represent a novel approach to modulate the macrocycle properties, opening the way for corrole-based molecular architectures featuring extensive π conjugation.